aa式的词语

My sister is ill.I have to take good care of her at home.改为同义词My sister is ill.I have to ( ) ( ) her ( ). 相对论部分 1.The total power radiated by the sun is about 3.83 x1026 Watts.How many kilograms of protons and electrons are transformed into helium every second?Note:For a fusion reaction the fraction of mass converted to energy is about 0.007.2. 英文相对论物理题.Intergalactic space travellers need to know the relative velocities and masses of theirspace ships.Each ship,therefore,has a 1.0 m long bar painted on the side of the shipalongside their rest mass.as you pass by a ship you me her duty today is to take good care of her little brother at home.同义句( )( ) her duty to take good care of her little brother at home today. Do I have to stay at home today?的回答 描写人带病工作的句子 I would like to life only for you!是什么意思 I would like to be your bride I would like to live to study and not study to live When I go to sleep 相对论有错吗 what's your english like? 运动是相对的,从太阳到地球的某粒子因为速度接近光速,寿命延长了,所以可以到地球.那么以粒子眼光看,地球寿命长了,它反而到不了地球? 到底有多少实验验证相对论的正确性,又有多少实验验证相对论是错的? 相对论真的错了吗? would you like to go to the movie with me together同意句would you like to ___ ___ ___ with me together 关于相对论中长度的问题一个人在静止的参考系中观察运动的棒子和这个人在运动的参考系中观察静止的棒子,测得的棒子长度有什么区别? 相对论,时间概念?曾经在科幻小说中看到一个很有趣的故事,说两个年轻人坐宇宙飞船去遥远的星球探险,当他们再次回到“陌生”的地球时却不知不觉中已过了800多年!但他们看起来和却还是20 相对论 长度和质量现在假设有一极长（长度l=1光年）（采用极端法）的质量极小的棒子（不用很长也可以,但长一点便于计算和理解）,由于光是世界上运动得最快的物体,因此任何物体都不如 一道相对论的固有长度物理问题,基本的!在S系中,沿x轴停着两艘相同的飞船,飞船长100m,相距200m,先设想两飞船同时点燃发动机,并在极短的时间内加速到0.8c.（1）试从S系的观点,画出加速后两飞 英语翻译would you like your life like a butterfly 康熙字典 四角号码:18640 这个字怎么读左边一个“石”字旁,右边一个“散”字.合起来怎么读, 吉林农业大学信息与计算科学这个系有美女么?多么?一界能有几个?我是今年农大信息与计算科学的新生!想知道下这个系的美女多不多!女生和男生的比例大概是多少!要知道具体数目就更好了! 英语DAVID的音标是什么? 英语get UP ,DAVID怎么读 What part of a festival do you like best-the activities ,the music ,the sighs ,the food or the people who visit 什么是四角号码法? 如何使用四角号码 什么是四角号码 四角号码 四角号码是什么? 英语翻译people would always like to spend these days with their families 翻译